Embolic basket

• US 6,575,997 B1
• Filed: 08/24/2001
• Issued: 06/10/2003
• Est. Priority Date: 12/23/1999
• Status: Expired due to Term

• Current Assignee: EndoVascular Technologies Incorporated (Boston Scientific Corporation)
• Original Assignee: EndoVascular Technologies Incorporated (Boston Scientific Corporation)
• Inventors: Shen, Christopher T., Palmer, Olin
• Primary Examiner(s): TRUONG, KEVIN THAO
• Application Number:
  US09/939,205
• Time in Patent Office: 655 Days
• Field of Search: 606/114,113,127,159,200
• US Class Current: 606/200
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/2212 having a closed distal end, e.g. a loop
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2002/016 made from wire-like elements
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0097 Harpoon-shaped
• CPC Class Codes: A61M 29/00 Dilators with or without means for introducing media, e.g. remedies instruments for performing visual medical inspections of cavities or tubes of the body A61B1/00

Abstract

An intravascular basket device for use in capturing either naturally occurring or foreign debris found in blood vessels or other regions of the body. The basket device is fabricated from a tube and includes a mid-section having at least one ring configured in an alternating V-pattern. The basket device specifically embodies structure that provides enhanced radial opening and angular resistance to collapse.

Claims

1. A medical device for treating an interior of a patient, comprising:

a body including a first member section, at least one ring member having a plurality of members in an alternating V-pattern defining a ring first end having a plurality of apices and a ring second end having a plurality of apices, and a second member section, the apices of the ring first end being merged with the first member section and the apices of the ring second end being merged with the second member section, the second member section defining a closed terminal end of the body; and

an elongate member having a first end and a second end, the second end being affixed to the body and the elongate member first end extending exterior of the patient.

2. The device of claim 1, wherein the first member section provides an opening to an interior of the body.

3. The device of claim 2, further comprising a plurality of undulate members which converge into a single tab member, the tab member projecting from a sidewall defining an opening to the body.

4. The device of claim 3, wherein the tab is affixed to the elongate member second end.

5. The device of claim 1, wherein the ring is self-expanding and operates to provide a consistent opening to an interior to the body.

6. The device of claim 1, wherein each of the straight members of the ring member have an approximate equal length.

7. The device of claim 1, wherein the ring has a four apex design.

8. A medical device for treating an interior of a patient comprising:

a body manufactured from a tubular element, the body including a first section, a plurality of ring members defining a mid-section, and a second section;

an elongate member having a first end portion and a second end portion, the second end portion being affixed to the body and the first end portion extending exterior of the patient; and

the ring members of the mid-section each include a plurality of straight members in an alternating V-pattern and a plurality of apices defining a proximal end and a distal end of each ring member such that the distal apices of a ring member are merged with the proximal apices of a successive ring member.

9. The device of claim 8, wherein the plurality of ring members includes a first and second ring member merged consecutively end to end defining the generally tubular mid-section.

10. The device of claim 9, wherein the straight members of the first and second rings have a near equal length.

11. The device of claim 9, wherein the straight members of the first and second rings have different lengths.

12. The device of claim 9, wherein the straight members of the first and second rings define an uneven pattern of apices.

13. The device of claim 8, the first section further comprising a first member section, the first member section includes a plurality of straight members in a V-shape design having vertices defining a proximal end and open ended branch ends defining a distal end.

14. The device of claim 13, wherein the straight members of the member section have a first length and the ring members have a second length approximating the first length.

15. The device of claim 13, wherein the straight members of the straight member section have a first length and the ring members have a second length different from the first length.

16. The device of claim 8, the second section further comprising a member section, the member section includes a plurality of straight members in a V-shape design having open ended branch ends defining a proximal end and converging vertices defining a distal end, at the distal end the vertices merge into a plurality of distally extending members, at the proximal end the open ended branch ends merge into the distal apices of the second ring member of the body mid-section.